What Is This?

It's a fairly difficult find, isn't it Coop?

Granted I'm here to learn and expressing what I see compared to how you guys see it. I just have a hard time wrapping my mind around these minor errors with my knowledge as well as others that's been doing metallurgy for 40 plus years. And has literally rebuilt gigantic presses and dies etc etc.

So if that is considered to be minor at what degree is the limit? When is too minor? Is there a numerical figure made up somewhere? How much lead way is given between tolerance of clearance and tonnage and actual error.

Does anyone know the tolerances of die clearance and or the presses tonnage tolerance for that given year.
All of which could affect the outcome of every coin. Down to the temp of the die, planchet, press, etc. There's so many variables that seem to be failed to be included. But then tiny errors are noted as such. That's where I get lost in it. I love the hobby and want to know more. Like I said. It confuses me when it gets down to minor thousandths/ hundred thousandths of an inch detail. When the presses more than likely barely hold that tolerance if they even do.

Might not make sense to most but makes sense to me. I've seen multi hundred ton presses and shears slice paper like a pair of scissors the tolerances are so close. They were being rebuilt because the heat expansion got to bad and failed to adjust the clearance and clashed messing up the shear edges.

Thanks for all your input guys.

Hey coop I've done it both ways bud and it still won't work for me. Waiting on a reply from the contact email.

And yes I understand the dbl comes from the die when it's hubbed. It does not take much heat or cold temp to create expansion or shrinkage. My point with the heat is that the expansion can be anywhere from the planchet, die face to the press and it's guts etc. It all affects it somehow in some minor way to change tolerance and clearance over the day or lifespan of the die. So why yes I get your point. But my point being do you not think that tonnage being off or die clearance being off just a tiny bit would not affect the strike? That it would look the exact same whether it's a light or heavy strike from the same die? A light strike might not fill the devices in the Hub properly on occasion when clearance is off. While a heavy strike with the same die might fill the devices completely and leave a more bold and full device. And what if there is trapped die crease that hydraulics? This affects the way a device forms correct?

I understand on the major doubles it's easy to see it was in the Hub. I've just seen a lot of so called dbl dies that whoever first called it with it's minor errors isn't legitimate enough. With no expressing the plenty of other variables that can cause device distortion Etc.

I'm just curious why that is mainly. I guess if I had coppercoins working I might to lean more .

Thanks again bud. Either way nice find whatever it is! Congrats man. I'll get mine one day. Just waiting on that major one.

You are setting the year/mint mark/variety selection right?

Something else that varies is the thickness of the planchet. A tapered/thinned planchet will not fill the devices. On some dies from the 1960's the reverse is weak on the cornice. That is because the hubbing was so deep in that area, that there is not enough metal to fill the extra deep cornice.

I don't see any prevalent top corner notch marks so Machine Doubling?